Search for radial velocity variations in rapidly oscillating AP stars using the Fabry-Perot interferometric stellar oscillation spectrometer

Bibcode
1989A&A...221...41B
Belmonte, J. A.; Bell, C. R.; Leeper, M.; Palle, P. L.; Pietraszewski, K. A. R. B.; Renton, R. E.; Roca-Cortés, T.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 221, no. 1, Aug. 1989, p. 41-48.

Advertised on:
8
1989
Number of authors
7
IAC number of authors
2
Citations
11
Refereed citations
10
Description
Radial velocity measurements of a group of Ap stars were obtained in May and December 1987 using a Fabry-Perot interferometric stellar oscillation spectrometer that has been improved to enable the instrument to be referenced to the Cd blue line. Observations of the rapidly oscillating Ap stars 33 Lib and HR 1217 were analyzed in order to search for radial velocity variations corresponding to the photometric periods found in these stars. The radial velocity and photometric data sets have been reduced with the aid of a weighted sine wave fitting routine. For HR 1217, a peak at 2.72 mHz and an amplitude of about 240 m/s are found.
Type
Refereed
A stars
Radial velocity
Stellar oscillations
Fabry-Perot interferometers

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